50JA12H

No. 50 - 5/8" Pitch - Single - QD Bushed Sprocket

Item #100804224

2.708 in Outside Diameter

JA Bushing Series

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Product Details

Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 rpm.

Hardened teeth sprockets afford longer chain and sprocket life
Tolerances meet or exceed ANSI standards
Manufactured of high carbon steel
Precise machining and processes ensure consistent finish and high quality
Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
Bores are concentric to pitch line, minimizing run out
Interchangeable with other manufacturers’ QD bushings
Stocked Heat Treat

Specifications

Hub Projection	0.28 in
Length Through Bore	5/8 in
Bushing Series	JA
Caliper Diameter	2.0148 in
Bushing Type	QD
Bushing Bore [Min]	1/2 in
Type	B
Width Across Teeth	0.343 in
Single Strand Tooth Thickness	0.343 in
Martin No.	50JA12H
Inch/Metric	Inch
Outside Dia. [Min]	2.7080 in
No. of Teeth	12
Outside Dia.	2.7080 in
Hardened Teeth	With Hardened Teeth
Hub Recess Width	0.165 in
Overall Length	5/8 in
Chain Pitch	5/8 in
Bore Type	Bushed
Hub Dia.	2 in
No. of Strands Across	1
Screw Size	#10-24 UNC
Pitch Diameter	2.415 in
Hub Recess Depth	0.0875 in
Overall Length Less Threads	N/A
Sprocket Style	B
Material	Steel
Bushing Bore [Max]	1 1/4 in
Hub Length	0.28 in
Tooth Width	0.343 in
Chain No.	50
Hub OD @ Recess	1.825 in
Weight	0.34 LB
EAN or UPC	697950041735